In‐Situ Shear Test of Soil‐Root Systems
In‐Situ Shear Test of Soil‐Root Systems
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DOI：
10.1061/(asce)0733-9410(1988)114:12(1376
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发表时间：
1988-12
期刊：
影响因子：
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通讯作者：
T. Wu;Philip E. Beal;C. Lan
中科院分区：
文献类型：
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作者：
T. Wu;Philip E. Beal;C. Lan
对根系加固土进行了原位剪切试验。在配套文件中提出的土壤-根系相互作用的分析模型被用来计算在根中的力和根的土壤-根系系统的抗剪强度的贡献。一般协议之间的测量和计算的剪切阻力被视为验证的分析模型。计算结果还显示了剪切盒尺寸对实测剪切强度的影响。在边坡稳定性问题中，原位试验测得的抗剪强度小于沿沿着潜在滑动面的抗剪强度。介绍了稳定性分析中抗剪强度的估计方法。
In situ shear tests were performed on soils reinforced by roots. Analytical models of soil‐root interaction presented in a companion paper were used to compute the forces in the roots and the contribution of the roots to the shearing resistance of the soil‐root system. General agreement between measured and computed shearing resistances was taken as verification of the analytical models. Results of the computations also showed the influence of the dimensions of the shear box on the measured shear strength. The shear strengths measured by the in situ tests were found to be less than the shear strength along a potential slip surface in slope stability problems. Methods for estimating the shear strengths for stability analysis are presented.